test: cover directory package test graphs

test/package/routing/b_white_test.ww

@@ -1,5 +1,6 @@
 package routing;
 
 @test fn private_helper_first() void = {
+	assert(privateproduction() == 8);
 	assert(privatevalue() == 8);
 };

test/package/routing/detail.ww

@@ -0,0 +1,5 @@
+package routing;
+
+fn privateproduction() int = { return 8; };
+
+export fn secondvalue() int = { return 9; };

test/package/routing/external_test.ww

@@ -4,4 +4,5 @@ import routing;
 
 @test fn external_package() void = {
 	assert(routing.value() == 7);
+	assert(routing.secondvalue() == 9);
 };

test/package/routing/routing_test.ww

@@ -2,5 +2,6 @@ package routing;
 
 @test fn same_package() void = {
 	assert(value() == 7);
+	assert(privateproduction() == 8);
 	assert(privatevalue() == 8);
 };